Finding the Fourth Proportional to 1,278.50, 1,771.43 and 1,250.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,278.50 : 1,771.43 = 1,250.82 : x
2. Step 2: Convert to fraction form
   1,278.50/1,771.43 = 1,250.82/x
3. Step 3: Cross multiply
   1,278.50x = 1,771.43 × 1,250.82
4. Step 4: Simplify right side
   1,278.50x = 2,215,730.30
5. Step 5: Solve for x
   x = 2,215,730.30/1,278.50
6. Step 6: Final answer
   x = 1,733.07